On Friday, Tucker Carlson investigates the border battle as Democrats push for a ‘technological wall.’ President Trump holds back on a national emergency. Then later, Tucker examines the left’s mobilization against legal gun owners. Plus: Did CNN decline local reporter due to border wall bias?

As a political leader, candidate Trump has made controlling the southern border one of his major themes. He has been talking about it for three and a half years. If he were to back down, it would send a signal of weakness to his base.

A police officer was hospitalized late Friday night after being shot during a traffic stop in Arlington, Texas, authorities said, but there were no immediate details about the officer's medical condition. A suspect was also wounded and later died, police said.

On Friday, Martha talks to Sheriff Chris Fitzgerald about the Jayme Closs kidnapping and updates us on what's going on with the teen, while lawmakers walk out for the weekend on the longest government shutdown in history, and Ocasio-Cortez mocks Joe Liberman after he says she's not the future.

Jeanne Nutter, the dog walker who first spotted Jayme Closs, the Wisconsin 13-year-old who had vanished after her parents were murdered in the family's home last year -- is a retired social worker who spent years working in child protective services.